The IET Wireless Symposium is organized by the Electronics and Communications Section (ECS) of IET Hong Kong. That will be held as a series of events on 12 June 2023 (Symposium in Regal Kowloon Hotel) 7 July 2023 (Visit to universities in Macau) 18 September 2023 (Visit to South China University of Technology Guangzhou - tentative) and 8 December 2023 (30th Anniversary Celebration & Dinner in Regal Kowloon Hotel). Since 1993 ECS have been organizing impactful technical events for the engineering and technology professionals in Hong Kong. The Symposium discusses the latest development on sustainable and connected smart city including but not limited to Standards AI robotics block chain healthcare cyber security product safety logistics transportation UAV digital twins smart metering mobile communication infra-structure and IoT applications and challenges. Focus will be around Hong Kong and the Greater Bay Area.